By using Wangan Midnight Maximum Tune 2 Player Card, you can save information of your game play.
You can save data of one car that you design for yourself on one card. Also, as you proceed with the game, you can get a lot of titles. This information is all saved on the card as well and it is printed on the card in large characters.
This card can work on any version machine. However once it is used, it can only work on that version (For example, if it is used in Japan machine first, it can only work in Japanese machines).